Window frame and sash



Patented May 17, 1932 UNITED STATES PATENT OFFICE HARRY E. CAMPBELL, OFBALTIMORE, MARYLAND, ASSIGNOR TO CAMPBELL "j WINDOW CORPORATION, OFBALTIMORE, MARYLAND, A CORPORATION OF MARY- LAND WINDOW FRAME AND SASHApplication filed December 18, 1930. Serial No. 503,167.

This invention relates to a window construction in which the sashesareso constructed that the glass can be held throughout by metallic memberswhich are readily inserted in place, and certain phases of the inventionare particularly applicable to casement windows in which a supplementalstiffening effect is provided.

The invention can best be understood by reference to the accompanyingdrawings, in-

members 10 and 12 which are all mitred at the corners and weldedtogether. These members all have substantially similar contour about theframe, subject only to such changes at the t'opor bottom ascircumstances may desire for installing the frame. These members arehere shown as bent out of sheet metal into a form having a flat portion14 toward the outside, a portion 16 running between the inside and theoutside and an innor portion 18. The detailed shape may be modified inmany particulars, the important feature being that the usual L-shapedrecess is supplied as is here formed by the portion 16 and 18. Againstthe portion 16 I preferably weld members 20 forming pockets to receiveweather stripping felt 22. thus making it unnecessary'to have a tightweatherseal at the inner line of contact.

i The sash, like the frame, consists of four primary members, all oflike contour, which are welded together, at the corners. As thesemembers are similar except for their length I have designated all ofthem by the numeral 24. Each member 24 comprises a fiat outer portion orplate 26, the end of which is adapted to contact with the outer fiatportion 14 of members10 and 12, and has a portion 28 bent inwardly. Thismember 24: is

bent as shown in Fig. 3 to form anoifs et glass rabbet, designated bythe numeral 30, and finally an inner portion 82 which overlaps the innerportion 18 of the frame but does not contact therewith. By forming thesesash members of relatively heavy sheet metal (say 12 gauge) bent in'thismanner to form an outer flat plate (which contacts with the frame andextends. across to the line of the opening) together with an inwardlyextending portion, a glass rabbet, and the inner portion 32, I not onlyget the necessary contour for holding. the glass but also. because ofthe number of bends and the number of portions which are positioned atsubstantially right angles to each other, I am;

able to obtain a one-piece sheet metal sash frame member substantiallyas stiff as the usual members formed of hot rolled sections.

If further stiffening is desired along the hin e side or opposite thehinges; I can easily weld in place a supplementary stiffening piece. asshown at 33 in Fig. 3 so that particular stiffening is given at thepoint of maximum strain without increasing the weight of the entire sashframe. Welded to member 24, preferably in the glassrabbet 30, is amember 34: made of relatively thin metal. This member follows thecontour 'of'the glass rabbet and extends alongthe inner face of portion32 and then is bent back on itself twice as clearly shown in Fig. 5 toform the glass stop. channel 36 with a restricted open- 'ing.

It is to be understood that there are four members 34 which extendentirely around the sash. Glass stops 38 are provided to slip into theglass stop channels36. The top and bottom glass stops preferably extendentirely across the sash, whereas the two side ones extend verticallybetween the top and bottom glass stops as shown in Fig. 1. If desired,

the bottom glass stop 38 may be built permanentlv in place to form. aglass channel. Each of the glass stops- 38 has. at'spaced points.portions struck up to form projections as shown at 40. These glass stopscanbe forced in under the reverse bend of member 36 which will snap intoplace holding the glass stops in proper position. To remove a glassstop, ascrew driver, or similar instrument, can be inserted adjacent oneof the stops 40, lifting the reverse bend of member 34 so that the glassstop can be removed. With the construction shown, projections 40 are notnecessary at the top, but I prefer to use them.

The muntin bars 42 are shown as of solid H-se-ction and are cut out atthe intersections so as to fit together in the manner shown in Fig. 4.The intersecting points are'preferably welded together so that themuntin bars become practically a unitary structure. The glass rabbet 30is made of sufficient size so that the projecting ends of the muntinbars will extend down into this rabbet between members 34 and glassstops 38 as shown in Fig.3.

To glaze the window, the two side glass stops 38 are removed and thenthe top glass stop, permitting the muntin bars 42 to be removed as aunit. The sockets in these muntin bars are then lined with putty and thepanes of glass then slipped into place. Additional putty is then put inthe glass rabbet and the muntin bars and glass are inserted as a whole,after which the glass stops 38 are put back into place. In order partlyto cover the putty, I may, if desired, bend the edge of each member 34inwardly as shown in Fig. 3 at 44, but this edge must be straightened upas shown at 46 at each point where an end of the muntin bar enters theglass rabbet. Inlike manner, I may form on the edge of the glass stops38 a ridge 48 which is cut away as indicated at 50 at each point whereone of the muntin bars enters the glass rabbet.

It. will be noted that the inner portion of member 34 contacts withportion 18 of the frame members when the window is closed, so that eventhough I rely on the bending of members 34 to insert the. glass stops,these members will be supported by contact against portions 18 of theframe. Thus when the window is drawn tightly shut any strain exerted byair pressure tending to bend members 34 will be transmitted directlyagainst the fixed frame members. It is to be further understood thatthis construction of sash can be used without muntins, either with asingle pane of glass or where the glasses are leaded together.

The term outside is used in this case as designating that side of thewindow from which the sash moves in closing, which usually will be theoutdoors side, but may be the indoors side if the window swings into theroom.

What I claim is 1. In combination, a casement window frame having theusual L-shaped recess and a sash frame having the usual plate adapted tocontact with such frame on .the outer face thereof, a glass rabbetformed on the sash adapted to receive glass from the inside, yieldablemembers on the inside of the sash and united therewith forming glassstop channels with restricted openings, and adapted substantially tocontact with the inner leg of the frame when the window is closed, andglass stops having projections adapted to be snapped into said channelsso that when the window is closed said glass stops will be held in placeby said yieldable members and said yieldable members will be reinforcedby said frame.

:2. A structure as specified in claim 1 which further includes a set ofunited intersecting muntin bars of H-section having their ends enteringsaid glass rabbet and held in place by said glass stops and removable'asa whole when said glass stops are removed.

3. A structure as specified in claim 1, which further includescompressible material carried by the window-frame and extending aroundthe periphery thereof adapted to contact with the said plate on the sashframe before such plate contacts with the fixed portions of saidwindow-frame whereby a seal may be maintained towards the exterior ofthe window while said yieldable members are held compressed against saidwindowframe.

4. In combination, a casement window frame having the usual L-shapedrecess and a sash frame having the usual plate adapted to contact withsuch frame on the outer face thereof, said sash frame having portionswhich extend inwardly from the aforesaid plate and are formed with aglass rabbet continuous around the sides and top and opening toward theinside, the inside edge of such portion being substantially outside ofthe inner portion of the frame when the window is closed, yieldablemembers united with the sash frame and extending inwardly therefrom andhaving aportion spaced away from such frame to form glass stop channelswith restricted openings, substantially flat glass stops adapted to beforced into said channels and means carried by the glass stops forlooking them in the channel.

A window'sash frame having a glass rabbet extending. continuously aroundthe sides and top, a set of united intersecting muntin bars of H-sectionhaving ends adapted to enter such glass rabbet and removable stopsadapted to hold said ends in said glass rabbet. said muntinbars beingremovable as a whole when said glass stops are removed.

6. In combination, a casement window frame having the usual L-shapedrecess and a sash frame having the usual plate adapted to contact withsuch frame on the outer face thereof. said sash frame consistingprincipally of four pieces of bent sheet metal united at their ends toform corners, each such piece comprising the said outside plate, an

inwardly extending portion, portions respectively at approximately rightangles to and parallel with said inwardly extending por tion to form aglass rabbet opening towards the inside, and an inside portion parallelwith said plate, whereby the sash frame is shaped to receive the glassand stiffened by the large number of bends formed in its members.

7. A window sash frame having parts forming a glass channel on one ofits four sides, rails on the other three sides shaped to form lassrabbets ada ted to receive -lass b Y b from the inside, members on theinside of such rails and united therewith forming glass stop channelshaving openings to receive glass stops, means for restricting suchchannel openings, and solid glass stops of a thickness substantiallyequal to the width of such restricted openings adapted to enter suchchannels, at least two of such glass stops hav ing projections adjacenttheir entering edges adapted to wedge past such restricting means and tosnap into place behind the same to hold the glass stops in place in thesash frame.

8. A window sash frame having parts forming a glass channel along thebottom, rails on the two adjacent sides shaped to form glass rabbetsadapted to receive glass from the inside, members on the inside of suchrails and united therewith forming glass stop channels havingv openingsto receive glass stops, means for restricting such channel openings,solid glass stops of a thickness substantially equal to the width ofsuch restricted openings adapted to enter such channels havingprojections adjacent their entering edges adapted to wedge past suchrestricting means and to snap in placebehind the same to hold the glassstops in place in the sash frame, and means for holding the top edge ofthe glass in place.

9. A window sash frame having parts forming a glass channel along thebottom, rails on the two adjacent sides shaped to form glass rabbetsadapted to receive glass from the inside, resilient members on theinside of such rails and united therewith forming glass stop channelshaving openings to receive glass stops, means for restricting suchchannel openings, glass stops adapted to enter such channels havingsubstantially non-compressible projections adjacent their entering edgesadapted to wedge against restricting means to widen the channel openingand adapted to snap into place behind the restricting means to hold theglass stops in place in the sash frame, and means for holding the topedge of the glass in place. 7

HARRY E. CAMPBELL.

